Cisco WS-X6066-SLB-APC-RF - Content Switching Module Instrukcja Użytkownika Pobierz pdf (Strona 6)

TECHNOLOGY SPOTLIGHT

Cisco Systems offers the industry’s most complete range of

switching solutions, supporting a wide variety of deployment

requirements in networks of every size. Yet Cisco Catalyst

switches are much more than a collection of point products to

meet isolated IT needs; they are part of an integrated approach

to the broader goals of protecting, optimizing, and growing

networks for years to come.

The architectural foundation of Services

Oriented Network Architecture.

Cisco Catalyst switches provide an architectural foundation for the intelligent

services that enable new applications and uses for the network Key elements include:

Hardware Integration

At the core of Cisco’s hardware integration is

application-specific integrated circuit (ASIC)

innovation Cisco has developed more than one

hundred ASICs for the Cisco Catalyst switching

family since 1995, with each generation

including more capabilities For example,

Cisco was the first vendor to integrate Layer 3

switching into hardware, and has gone on to

integrate security access control lists (ACLs),

quality of service (QoS) classification, and

queuing across the entire Cisco Catalyst line

Cisco is also the only switching vendor to offer

hardware-based services modules, which

integrate key functions such as firewalling,

content networking, and network analysis

directly into Catalyst 6500 switches

Predictable Performance

Cisco offers among the highest performance

modular and stackable switches in the

industry, but throughput alone is not enough

Organizations need to be assured of predictable

performance, regardless of variables like

congestion, traffic type, or the use of software-

or hardware-enabled services That’s why

all Cisco Catalyst switches are designed to

maintain predictable performance through a

unique combination of mechanisms, including

Cisco Express Forwarding (CEF), Ternary

Content Addressable Memory (TCAM), buffering,

and congestion management This ensures that

network managers can enable complex features

without fear of losing speed in their networks

Unified Network Services

Scaling rich media applications, voice, video,

and data on a single network requires a

comprehensive approach to network services

The Catalyst portfolio leads the industry in

Gigabit and 10 Gigabit Ethernet (10GbE) port

density Desktop Gigabit Ethernet, also called

10/100/1000, provides investment protection

for future connectivity needs while also

making use of the “free” LAN-on-motherboard

solutions shipping on most new desktop and

laptop computers Similarly, 10GbE is being

rapidly adopted in many enterprise networks,

particularly in the network core, distribution,

and in data center networks Another key

consideration is Power over Ethernet (PoE),

which simplifies the deployment of devices

such as IP phones and wireless access

points PoE eliminates the need for additional

power cabling Cisco drove the 8023af

power standard through IEEE and today offers

extensions to the IEEE standard through the use

of intelligent power management In keeping

with Cisco’s evolutionary approach, the Cisco

Catalyst line includes switches that support

both pre-standard inline power as well as

IEEE 8023af-compliant devices, enabling our

customers to deploy new technology while

continuing to make the most of past investments

Cisco offers the highest density of IEEE 8023af

PoE devices (up to 420) in a single chassis with

full power redundancy

Virtualization

Cisco Catalyst Series switches offer a wide

variety of technologies that enable the scaling

of a single physical network into multiple, logical

networks Identity services such as 8021x and

Network Admission Control (NAC) ensure users

are able to access appropriate resources Path

isolation technologies provide a means for

traffic isolation These include Generic Route

Encapsulation (GRE), Virtual Route Forwarding

(VRF) and Multiprotocol Label Switching (MPLS)

Additionally, service modules such as the

Application Control Engine (ACE) for the Catalyst

6500 can be virtualized to offer up to 256

different instances

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